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Thread: Cbta vs. Cbua which is mine?

  1. #1
    Member rickr71 is just really nice rickr71's Avatar
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    Cbta vs. Cbua which is mine?

    I was ordering an oil pan gasket from Autohaus of AZ, and they asked for which 2.5 engine i own. They gave me a choice between a CBTA and a CBUA. Whats the difference between the two? Is one auto and the other stick maybe?

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  3. #2
    Member rickr71 is just really nice rickr71's Avatar
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    Re: Cbta vs. Cbua which is mine?

    Nitro posted an earlier thing on the differences that i just found after posting(sorry). Mine is a California emissions engine i guess (CBUA) if i read his post correctly.

  4. #3
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    Re: Cbta vs. Cbua which is mine?

    It should be stamped somewhere on your block. Should be the same oil pan gasket either way, but can't hurt to know for sure.
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    Re: Cbta vs. Cbua which is mine?

    The only difference is the 3rd cat i believe.
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  6. #5
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    Re: Cbta vs. Cbua which is mine?

    I thought it was just a huge cat and a 3rd O2 sensor
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    Re: Cbta vs. Cbua which is mine?

    Quote Originally Posted by djwhiplash2001 View Post
    I thought it was just a huge cat and a 3rd O2 sensor
    Thats what i meant, disregard the 3rd cat thing...3rd o2 sensor.
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    Re: Cbta vs. Cbua which is mine?

    quick question, is performance different between the two engines?

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    Senior Member Chad Oner is a glorious beacon of light Chad Oner's Avatar
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    Re: Cbta vs. Cbua which is mine?

    Quote Originally Posted by djwhiplash2001 View Post
    i thought it was just a huge cat and a 3rd o2 sensor
    a huge cat under there huh??? Lol

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  10. #9
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    Re: Cbta vs. Cbua which is mine?

    Performance is the same between the two engines. CBTA is ULEV and CBUA is SULEV (pzev) The oil pan gasket is liquid and black in color....same for all 2.5's.

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    Member rickr71 is just really nice rickr71's Avatar
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    Re: Cbta vs. Cbua which is mine?

    A liquid sealant? is that what you mean? Or does "liquid" describe some type of rubber?

  12. #11
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    Re: Cbta vs. Cbua which is mine?

    The sealant comes in a tube that is basically rtv silicone...its more liquid than hard, when exposed to air for 24 hrs it hardens to a rubber type compound. This type of gasket has been used for years.
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  13. #12
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    Re: Cbta vs. Cbua which is mine?

    the stuff vw uses is NOT rtv. Not even close. It's almost a cement and when it dries, it's not coming off without a really large prybar and hammer + WWIV.

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  14. #13
    Member rickr71 is just really nice rickr71's Avatar
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    Re: Cbta vs. Cbua which is mine?

    Ill be careful when prying pan off. After scraping the old gasket off I will add the new sealant. I will apply a 3/16- 1/4" bead around and assemble pan with light pressure until sealant compresses down to an 1/16 thick; let it dry for 24 hours, then i will torque. sound right?

  15. #14
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    Re: Cbta vs. Cbua which is mine?

    No.....Remove the pan carefully and clean all old sealant off. Apply a 2-3mm bead around the pan. Install. Torque all bolts. You may fill with oil immediately.

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